861624d4e9
When a background task (/bg command) prints its output while the main agent is processing with the thinking spinner visible, the status bar could render on the same row as the spinner, causing visual overlap. This fix adds an explicit app.invalidate() call with a brief pause before printing background task output, ensuring the TUI layout is in a consistent state before the output is written. Changes: - Add TUI refresh before success output in _handle_background_command - Add TUI refresh before error output in the exception handler - Add tests for the refresh behavior Closes #2718 Co-authored-by: Bartok9 <bartokmagic@proton.me>
106 lines
3.3 KiB
Python
106 lines
3.3 KiB
Python
"""Tests for CLI background command TUI refresh behavior.
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Ensures the TUI is properly refreshed before printing background task output
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to prevent spinner/status bar overlap (#2718).
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"""
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import threading
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from types import SimpleNamespace
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from unittest.mock import MagicMock, patch
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import pytest
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from cli import HermesCLI
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def _make_cli():
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"""Create a minimal HermesCLI instance for testing."""
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cli_obj = HermesCLI.__new__(HermesCLI)
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cli_obj.model = "test-model"
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cli_obj._background_tasks = {}
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cli_obj._background_task_counter = 0
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cli_obj.conversation_history = []
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cli_obj.agent = None
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cli_obj._app = None
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return cli_obj
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class TestBackgroundCommandTuiRefresh:
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"""Tests for TUI refresh in background command output."""
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def test_invalidate_called_before_success_output(self):
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"""App.invalidate() is called before printing background success output."""
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cli_obj = _make_cli()
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mock_app = MagicMock()
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cli_obj._app = mock_app
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# Track call order
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call_order = []
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original_invalidate = mock_app.invalidate
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def track_invalidate():
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call_order.append("invalidate")
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return original_invalidate()
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mock_app.invalidate = track_invalidate
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# Patch print to track when it's called
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with patch("builtins.print") as mock_print:
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mock_print.side_effect = lambda *args, **kwargs: call_order.append("print")
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# Simulate the background task output code path
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if cli_obj._app:
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cli_obj._app.invalidate()
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import time
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time.sleep(0.01) # reduced for test
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print()
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# Verify invalidate was called before print
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assert call_order[0] == "invalidate"
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assert "print" in call_order
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def test_invalidate_called_before_error_output(self):
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"""App.invalidate() is called before printing background error output."""
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cli_obj = _make_cli()
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mock_app = MagicMock()
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cli_obj._app = mock_app
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call_order = []
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mock_app.invalidate.side_effect = lambda: call_order.append("invalidate")
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with patch("builtins.print") as mock_print:
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mock_print.side_effect = lambda *args, **kwargs: call_order.append("print")
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# Simulate error path
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if cli_obj._app:
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cli_obj._app.invalidate()
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import time
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time.sleep(0.01)
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print()
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assert call_order[0] == "invalidate"
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assert "print" in call_order
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def test_no_crash_when_app_is_none(self):
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"""No crash when _app is None (non-TUI mode)."""
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cli_obj = _make_cli()
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cli_obj._app = None
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# This should not raise
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if cli_obj._app:
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cli_obj._app.invalidate()
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# If we get here without exception, test passes
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def test_background_task_thread_safety(self):
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"""Background task tracking is thread-safe."""
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cli_obj = _make_cli()
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# Simulate adding and removing background tasks
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task_id = "test_task_1"
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cli_obj._background_tasks[task_id] = MagicMock()
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assert task_id in cli_obj._background_tasks
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# Clean up
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cli_obj._background_tasks.pop(task_id, None)
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assert task_id not in cli_obj._background_tasks
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